/* rewind example */
#include <stdio.h>

int main()
{
  int n;
  FILE *pFile;
  char buffer[27];

  pFile = fopen("myfile.txt", "w+");
  for (n = 'A'; n <= 'Z'; n++)
    fputc(n, pFile);
  rewind(pFile);
  fread(buffer, 1, 26, pFile);
  fclose(pFile);
  buffer[26] = '\0';
  puts(buffer);
  
  return 0;
}